Fuel Gauge problem - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-14-2007, 02:45 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2007
Location: Joliet, IL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
al4carat is on a distinguished road
Default Fuel Gauge problem

I just swapped my engine trans and computer on my 97 Bonneville. They all came out of a 97 Grand Prix. The problem I see is that the fuel level sensor does not go to the computer on Grand Prixs like they do on Bonnevilles. Anyone have any ideas on how to get the fuel gauge working?

Thanks!!
al4carat is offline   Reply With Quote
Old 06-14-2007, 03:42 PM   #2
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

I don't recall the fuel sender signal going to the pcm and not to the cluster. The 97 pcm shouldn't be monitoring the fuel level.

Are you sure about that and it'* not a fuse or something easy?
BillBoost37 is offline   Reply With Quote
Old 06-14-2007, 03:53 PM   #3
Junior Member
Thread Starter
 
Join Date: Jun 2007
Location: Joliet, IL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
al4carat is on a distinguished road
Default

The fuel level pwm control goes to the pcm to port 5, and goes out of the pcm at port 74 to the gauge as a fuel tank level sensor. When I removed the sender from port 5 the gauge went from empty to full, and then when I wired it to port 74, it went back to empty. The car is on two jack stands which might have pushed the fuel to the back of the tank. I have to drop the tank to change the pump, so I will check the sender soon.
al4carat is offline   Reply With Quote
Old 06-21-2007, 08:52 PM   #4
Junior Member
Thread Starter
 
Join Date: Jun 2007
Location: Joliet, IL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
al4carat is on a distinguished road
Default

Changed the fuel pump, checked the sender, it works.

I put the old ecu in and the gauge works!! Went to local dealership to reprogram the ecu from Grand Prix to Bonneville, and they wouldn't touch it. They will only program the ecu with the existing Vin number (vin K), which will not help me. I asked them if they would do a case learn if I purchased a new ecu, they said NO.

Any help would be appreciated!! I have a check engine code of 1810, and I don't have a transmission indicator light.
al4carat is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Dash Temperature Gauge / Fuel Gauge impalamonte Oldsmobile 8 12-27-2014 09:49 PM
Replaced Fuel Sending Unit - fuel gauge on empty now -fixed gigion 1992-1999 17 09-08-2007 10:44 PM
Erratic temperature gauge and fuel gauge 1995BvSSE 2000-2005 8 06-15-2007 09:20 PM
91 SSE Fuel Gauge Problem borntolose 1987-1991 20 08-30-2004 02:20 PM
Fuel gauge reads empty with full fuel tank? Here's the fix! SSEiguy 1992-1999 8 07-18-2002 09:17 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:38 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.